xxx grub # grub-install --recheck --force /dev/sde
/usr/local/sbin/grub-setup: warn: Your core.img is unusually large. It won't fit in the embedding area..
/usr/local/sbin/grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
Installation finished. No error reported.